No cp, big heroine
In the Tang Dynasty, an orphan was brought back to the sect by the Master of Qingluan Sect when she was 5 years old and became the youngest junior sister. However, when she was 10 years old, the Master took in another junior sister Mu Wan who was the same age as her. However, her status plummeted. She had her spiritual roots dug out by the Master in her previous life before she realized that there was no point in cultivating to please them, so she decided to abandon the Tao and re-cultivate the Wuqing Tao. Doesn't it say that the Wu Wu Tao can ascend with a single thought?
Note: The heroine is alone from beginning to end, without a partner.